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Security audit

my_skill

Security checks for vulnerabilities and agentic risk

Overview

The skill is for 1Password CLI use, but some included examples can expose real vault secrets in terminal output or plaintext files.

Review this skill carefully before installing. It is not evidence of a backdoor, but do not copy examples that print secrets, use `--no-masking`, capture secret output in tmux, or write keys/configs to ordinary working-directory files unless you have strict permissions and cleanup in place.

Vulnerability Patterns
  • Insecure Skill Coding PracticesFinds exploitable flaws such as hardcoded secrets or command injection
  • Skill Instruction HijackingAlters the agent's session goals or safety constraints when the skill loads
  • Agent Memory PoisoningWrites attacker-controlled rules into memory that affect later sessions
  • Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
  • Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally
Findings (1)

T09 · Insecure Skill Coding Practices

Error
Location
references/cli-examples.md:8
Finding

Secret Disclosure Through Unsafe 1Password CLI Examples

Content
View full analysis
Remediation
View remediation
Vulnerability Patterns
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (7)

Env Variable Harvesting

High
Category
Data Exfiltration
Confidence
97% confidence
Finding

op run --no-masking -- printenv DB_PASSWORD resolves a secret and then deliberately prints it, which is a direct secret disclosure pattern. The added --no-masking makes the example more dangerous by disabling a protective control and normalizing secret exposure during routine usage.

Content

Scanner excerpt · references/cli-examples.md (reported line 18)May include surrounding context.

md
## Run

- `export DB_PASSWORD="op://app-prod/db/password"`
- `op run --no-masking -- printenv DB_PASSWORD`
- `op run --env-file="./.env" -- printenv DB_PASSWORD`

## Inject

Missing User Warnings

High
Category
Not specified by scanner
Confidence
98% confidence
Finding

These examples explicitly print a secret-derived environment variable, and one disables masking with --no-masking, making disclosure to the terminal, logs, CI output, shell history capture tools, or other observers much more likely. In the context of a 1Password CLI skill, demonstrating secret exfiltration to stdout without warning is especially risky because users may copy the pattern into automation.

Content

No source excerpt is available for this finding.

Env Variable Harvesting

High
Category
Data Exfiltration
Confidence
94% confidence
Finding

op run --env-file="./.env" -- printenv DB_PASSWORD demonstrates harvesting a secret from the runtime environment and printing it to stdout. Even without --no-masking, showing printenv against a secret variable encourages a disclosure workflow that can leak credentials in terminals, CI logs, and recorded sessions.

Content

Scanner excerpt · references/cli-examples.md (reported line 19)May include surrounding context.

md
- `export DB_PASSWORD="op://app-prod/db/password"`
- `op run --no-masking -- printenv DB_PASSWORD`
- `op run --env-file="./.env" -- printenv DB_PASSWORD`

## Inject

Credential Access

High
Category
Privilege Escalation
Confidence
60% confidence
Finding

Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.

Content

Scanner excerpt · references/cli-examples.md (reported line 19)May include surrounding context.

md
- `export DB_PASSWORD="op://app-prod/db/password"`
- `op run --no-masking -- printenv DB_PASSWORD`
- `op run --env-file="./.env" -- printenv DB_PASSWORD`

## Inject

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
92% confidence
Finding

The example writes secret material directly to a local file (--out-file ./key.pem) without any warning about filesystem exposure, permissions, shell history, backups, or cleanup. In a secrets-management skill, omitting handling guidance can lead users to persist sensitive keys in insecure locations or with overly broad permissions.

Content

No source excerpt is available for this finding.

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
91% confidence
Finding

The inject examples produce secret-populated output either to stdout or to a concrete config file, but provide no warning that the resulting data is now plaintext secret material. That can cause accidental exposure through terminal logs, insecure file permissions, source control, artifact uploads, or long-lived config files.

Content

No source excerpt is available for this finding.

Unrestricted Tool Access

Medium
Category
Excessive Agency
Confidence
80% confidence
Finding

Skill grants unrestricted tool access without appropriate constraints. An agent with unfettered tool access can perform arbitrary actions including file modification, network requests, and code execution.

Content

Scanner excerpt · references/get-started.md (reported line 15)May include surrounding context.

md
- macOS: Settings > Developer > Integrate with 1Password CLI (Touch ID optional).
  - Windows: turn on Windows Hello, then Settings > Developer > Integrate.
  - Linux: Settings > Security > Unlock using system authentication, then Settings > Developer > Integrate.
- After integration, run any command to sign in (example in docs: `op vault list`).
- If multiple accounts: use `op signin` to pick one, or `--account` / `OP_ACCOUNT`.
- For non-integration auth, use `op account add`.

Static analysis

No suspicious patterns detected.